Wave-domain approach for cancelling noise entering an aperture
AssigneeGN Hearing A/S
InventorsWillem Bastiaan Kleijn, Daan Ratering
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Abstract
An apparatus for providing active noise control, includes: one or more microphones configured to detect sound entering through an aperture of a building structure; a set of speakers configured to provide sound output for cancelling or reducing at least some of the sound; and a processing unit communicatively coupled to the set of speakers, wherein the processing unit is configured to provide control signals to operate the speakers, wherein the control signals are independent of an error-microphone output.
Claims28
An apparatus for providing active noise control, comprising:
- one or more microphones configured to detect sound entering through an aperture of a building structure;
- a set of speakers configured to provide sound output for cancelling or reducing at least some of the sound;
- and
- a processing unit communicatively coupled to the set of speakers, wherein the processing unit is configured to provide control signals to operate the speakers, wherein the control signals are independent of an error-microphone output.
An apparatus for providing active noise control, comprising:
- one or more microphones configured to detect sound entering through an aperture of a building structure;
- a set of speakers configured to provide sound output for cancelling or reducing at least some of the sound;
- and
- a processing unit communicatively coupled to the set of speakers, wherein the processing unit is configured to provide control signals to operate the speakers;
- wherein the processing unit is configured to provide the control signals based on filter weights, and wherein the filter weights are based on an orthonormal set of basis functions.
An apparatus for providing active noise control, comprising a processing unit, wherein the processing unit is configured to communicatively couple with:
- one or more microphones configured to detect sound entering through an aperture of a building structure, and
- a set of speakers configured to provide sound output for cancelling or reducing at least some of the sound;
- wherein the processing unit is configured to provide control signals to operate the speakers;
- and
- wherein the control signals are independent of an error-microphone output, and/or wherein the processing unit is configured to provide the control signals based on filter weights, the filter weights being based on an orthonormal set of basis functions.
Dependencies are inferred from the claim text.